Section 3 - Shoulder Flashcards
Infraspinatus
Infraspinous fossa to the greater tubercle
Action: external rotator
depression
Subscapularis
Subscapular fossa to lesser tubercle of humerus
Action: internal rotator
*rotator cuff muscle
Teres Minor
Lateral border lf scapula to back of greater tubercle
Action: external rotator of shoulder
adduction
*rotator cuff muscle
Teres Major
Lateral border to front of bicipital groove
Action: internal rotator
adduction
Supraspinatus
Supraspinous fossa inserting to top of greater tubercle (next to traps on shoulder)
Action: abduction @ shoulder
Bicep Brachii (SH & LH)
LH: supraglenoid tubercle to the radius
Action: flex @ elbox, flex @ shoulder
SH: coracoid & supraglenoid into radius
Action: flex elbow
flex shoulder
supinate
Subclavius
1st rib/costal cartilage into the clavicle
Action: holds clavicle down
Pectoralis Minor
Anterior of 3,4,5 ribs into coracoid process
Action: abducts scapula
depression of scapula
pulls scapula down
Coracobrachialis
Coracoid process of scapula to medial aspect of humerus
Action: arm flexor
Serratus Anterior
Lateral top 8 ribs into medial border of scapula
Action: abducts scapula
Upward rotation of scap
Tricep Brachii
Long Head: infraglenoid tubercle to olecranon process
Lateral Head: back of humerus to olecranon process
Action: shoulder extensor
elbow extensor
Pectoralis Major
ClavicularHead & Sternal Head
-from clavicle & sternum into the bicipital groove
Action: internally rotate
flex shoulder
horizontal flexion
Rhomboids
Spinous process of C7 & T5 into lower back
Action: adduct scapula
downward rotation
Levator Scapula
C1 to C4 into top of medial border
Action: elevate scapula
downward rotation
Trapezius
Upper: C7 & occipital into acromion process
Action: elevate & upward rotation
Middle: T1-T5 into back of scap spine
Action: adduct
Lower: T6-T12 into scap spine
Action: upwardly rotate & depress
